Summer Training: Catching Up With NASA’s Astronaut Candidates
Did you spend part of your summer camping, hiking, at the pool, or in an aircraft? So did NASA’s 2025 Astronaut Candidate Class. The 10 candidates have been working their way thro…
No cities on the moon — there isn't enough water, scientists say (op-ed)
The discovery of water in dark craters at the moon's poles has sparked a "moon rush" to establish bases there, and then villages, cities and heavy industry. How sustainable is thi…
On this day in space! Sept. 14, 1966: NASA's Gemini 11 astronauts set altitude record for Earth orbit that went unbroken for 58 years
On Sept. 14, 1966, NASA's Gemini 11 mission set an spaceflight altitude record that lasted for nearly six decades. Here's why the mission mattered.
Cygnus the swan lifts up the International Space Station | Space photo of the day for Sept. 14, 2026
Just a little help from its friends.
Bizarre galactic radio source remains active for two decades with no detectable X-rays
Astronomers have identified a peculiar radio transient in the Milky Way that has remained active for more than two decades, defying the behavior expected of known classes of galac…
Pre-order the Unistellar Envision AR binoculars and learn about the night sky in real-time
Unistellar's long awaited augmented reality Envision smart binoculars are available to pre-order for $1499, with guaranteed delivery before Christmas.
Is there a hidden 'Planet 9' in our solar system?
For more than a century, astronomers have been captivated by the idea that an undiscovered planet could be lurking in the furthest reaches of our solar system.
James Webb Space Telescope and Hubble discover 27 puzzling new objects orbiting the sun far beyond Neptune
The Hubble and James Webb space telescopes discovered some surprising things about 27 new tiny objects far beyond the orbit of Neptune.
APOD: 2026 September 14 – Where Your Elements Came From
APOD Science APOD APOD: 2026 September 14 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the co…
No cities on the moon—there isn't enough water, scientists say
The discovery of water in dark craters at the moon's poles has sparked a "moon rush" to establish bases there, followed by villages, cities and heavy industry. How sustainable is …
An Early Look at Fall Color in Canada
Reds, yellows, and oranges are already sweeping across tundra landscapes in Nunavut.
JWST ruled out finding tiny moons around an exoplanet—that's great news
The James Webb Space Telescope (JWST) has opened many wonders of the cosmos to scientists since it began science operations a few years ago. But one thing it hasn't done is find a…
SpaceX launches 3 telecom satellites to orbit on 700th Falcon mission of all time (video)
SpaceX lofted three of SES's O3b mPOWER communications satellites to orbit today (Sept. 13), on the 700th mission to date for the Falcon rocket family.
Astronomers unmask a supernova impostor
A distant star has captured astronomers' attention over the past decade, teasing them with indications that it will soon explode as a supernova. But new research shows that someth…
Masked tectonic structures suggest Mercury contracted 40% more than its visible scars alone indicate
The surface of Mercury is filled with craters, ridges and steep cliffs. Over billions of years, as the planet's interior cooled, the planet also shrank. Just as the skin of a dryi…
On this day in space! Sept. 13, 2007: Japan launches Kaguya spacecraft to the moon to map the lunar surface in HD
On Sept. 13, 2007, Japan launched the Kaguya spacecraft on a mission to the moon. Here's why it mattered.